Evaluation of High-Performance Polyether Ether Ketone Polymer Treated with Piranha Solution and Epigallocatechin-3-Gallate Coating

Table 10

Tukey’s test of multiple comparisons for different groups of Vicker’s hardness test results.

Tukey’s HSD test
Group pairs	Difference	Standard error	score	value	Sig.
C vs. P	3.453	0.282735	12.21285	< 0.00001	S
C vs. E	5.655	0.282735	20.00106	< 0.00001	S
C vs. PE	6.444	0.282735	22.79166	< 0.00001	S
P vs. E	9.108	0.282735	32.21391	< 0.00001	S
P vs. PE	9.897	0.282735	35.00451	< 0.00001	S
E vs. PE	0.789	0.282735	2.790599	0.21691	NS